mmc: sdhci-tegra: drop ->get_ro() implementation

The SDHCI core is know properly checking for the state of a WP GPIO,
so there is no longer any need for the sdhci-tegra code to implement
->get_ro() using mmc_gpio_get_ro().

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci-tegra.c

@@ -245,11 +245,6 @@ static void tegra210_sdhci_writew(struct sdhci_host *host, u16 val, int reg)
 	}
 }
 
-static unsigned int tegra_sdhci_get_ro(struct sdhci_host *host)
-{
-	return mmc_gpio_get_ro(host->mmc);
-}
-
 static bool tegra_sdhci_is_pad_and_regulator_valid(struct sdhci_host *host)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -977,7 +972,6 @@ static const struct cqhci_host_ops sdhci_tegra_cqhci_ops = {
 };
 
 static const struct sdhci_ops tegra_sdhci_ops = {
-	.get_ro     = tegra_sdhci_get_ro,
 	.read_w     = tegra_sdhci_readw,
 	.write_l    = tegra_sdhci_writel,
 	.set_clock  = tegra_sdhci_set_clock,
@@ -1033,7 +1027,6 @@ static const struct sdhci_tegra_soc_data soc_data_tegra30 = {
 };
 
 static const struct sdhci_ops tegra114_sdhci_ops = {
-	.get_ro     = tegra_sdhci_get_ro,
 	.read_w     = tegra_sdhci_readw,
 	.write_w    = tegra_sdhci_writew,
 	.write_l    = tegra_sdhci_writel,
@@ -1087,7 +1080,6 @@ static const struct sdhci_tegra_soc_data soc_data_tegra124 = {
 };
 
 static const struct sdhci_ops tegra210_sdhci_ops = {
-	.get_ro     = tegra_sdhci_get_ro,
 	.read_w     = tegra_sdhci_readw,
 	.write_w    = tegra210_sdhci_writew,
 	.write_l    = tegra_sdhci_writel,
@@ -1120,7 +1112,6 @@ static const struct sdhci_tegra_soc_data soc_data_tegra210 = {
 };
 
 static const struct sdhci_ops tegra186_sdhci_ops = {
-	.get_ro     = tegra_sdhci_get_ro,
 	.read_w     = tegra_sdhci_readw,
 	.write_l    = tegra_sdhci_writel,
 	.set_clock  = tegra_sdhci_set_clock,